Panasonic FP Series Programming Manual page 869

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Date and time instructions

F157_ADD_DTBCD

The date/clock data (3 words) specified by s1_DTBCD and the time data (2 words) specified by

s2_TIMEBCD are added together if the trigger EN is in the ON-state. The result is stored in the

area (3 words, same format as s1_DTBCD) specified by d_DTBCD. This instruction handles all

data in BCD format.

You cannot specify special data registers DT9054 to DT9056 (DT90054 to DT90056

for FP2/2SH and FP10/10S/10SH) for the operand d_DTBCD. These registers are

factory built-in calendar timer values. To change the built-in calendar timer value,

first store the added result in other memory areas and transfer them to the

special data registers using SET_RTC_DTBCD (see page 874) instruction.

This instruction also exists as a P instruction (for FP2/2SH, FP3/5, FP10/10SH PLC types), which

is only executed at the rising edge of the EN trigger. Select [Insert P instruction] from the

"Instructions" pane if you require a P instruction. To facilitate reuse, the instruction then appears

under "Recently used" in the pop-up menu. Press <Ctrl>+<Shift>+<v> within the programming

area to open the list of recently used elements.

Example 1: clock/calendar data in

DTBCD format

August 1, 1992, Time: 14:23:31

(hours:minutes:seconds)

Example 2: time data in TIMEBCD

32 hours; 50 minutes; and 45 seconds

Availability of F157_ADD_DTBCD_TIMEBCD (see page 1321)

Time addition

16#2331 (minutes/seconds)

16#0114 (day/hour)

16#9208 (year/month)

16#00325045 hex

(hours/minutes/seconds)